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公开(公告)号：US11877348B2
公开(公告)日：2024-01-16
申请号：US17571304
申请日：2022-01-07
Applicant: Apple Inc.
Inventor： Chiu Ngok E. Wong , Christiaan A. Hartman , Zheng Zeng , Joonsuk Kim , Su Khiong Yong , Yong Liu
CPC classification number: H04W8/183 , H04L69/22 , H04W52/0216 , H04W84/12 , Y02D30/70
Abstract: Embodiments described herein relate to a system and method for providing flexible receiver configuration in wireless communication systems, such as 802.11 WLAN systems. In one embodiment, a wireless device may transmit a first data frame including first configuration information specifying a first configuration of the receiver to notify a remote device that the wireless device intends to configure its receiver according to the first configuration. After receiving an acknowledgement frame confirming the first configuration information, the wireless device may configure the receiver according to the first configuration. In another embodiment, a wireless device may receive a first data frame including first configuration information and further including a request that the wireless device configure its receiver according to the first configuration. In response, the wireless device may configure the receiver according to the first configuration. In either case, the wireless device may receive subsequent communications according to the first configuration.
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公开(公告)号：US11160017B2
公开(公告)日：2021-10-26
申请号：US16662848
申请日：2019-10-24
Applicant: Apple Inc.
Inventor： Yong Liu , Christiaan A. Hartman , Siegfried Lehmann , Su Khiong Yong , Guoqing Li
IPC: H04W52/02 , H04L29/06 , G08C17/02 , H04B7/185 , H04W68/02 , H04W84/04 , H04W84/12 , H04W48/12 , H04W4/80 , H04W88/10 , H04W88/06
Abstract: A dual-radio AP including both a high-power (e.g., Wi-Fi) radio and a low-power (e.g., BLE) radio may support an assisted wakeup service for a power-limited dual-radio mobile device (STA). The power-limited STA may register with the AP for the assisted wakeup service, and may then disable its Wi-Fi radio (or otherwise initiate a lower-power mode). The power-limited STA may receive a BLE communication indicating the AP has pending Wi-Fi transmissions or updates applicable to the power-limited STA. In response, the power-limited STA may turn on its Wi-Fi radio and receive the pending transmissions or updates from the AP. If an AP does not include a low-power radio, then a high-power/low-power dual-radio STA that is not power-limited may serve as an assisted wakeup service proxy. The proxy may scan and trace the Wi-Fi beacons from the AP, and generate the BLE communication to the power-limited STA on behalf of the AP.
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公开(公告)号：US10959174B2
公开(公告)日：2021-03-23
申请号：US16113550
申请日：2018-08-27
Applicant: Apple Inc.
Inventor： Jarkko L. Kneckt , Yong Liu , Su Khiong Yong , Christiaan A. Hartman , Guoqing Li
Abstract: An interface circuit in an electronic device (such as an access point) may receive a wake-up-radio (WUR)-setup request associated with a recipient electronic device, where the WUR-setup request specifies one or more proposed data criteria or wake-up criteria that indicate when a wake-up frame is to be transmitted to the recipient electronic device. In response, the electronic device may determine one or more data criteria (or wake-up criteria) for use based at least in part on the one or more proposed data criteria. Then, the interface circuit may provide a WUR-setup response intended for the recipient electronic device, where the WUR-setup response indicates acceptance of the one or more proposed data criteria for use as the one or more data criteria or a proposed modification of at least one of the one or more proposed data criteria.
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公开(公告)号：US10924993B2
公开(公告)日：2021-02-16
申请号：US16109985
申请日：2018-08-23
Applicant: Apple Inc.
Inventor： Jarkko L. Kneckt , Matthew L. Semersky , Christiaan A. Hartman , Oren Shani , Yong Liu , Xiaowen Wang , Tushar R. Shah , Yoel Boger , Rajneesh Kumar , Josef Peery , Christian W. Mucke , Guoqing Li
Abstract: An interface circuit in an electronic device (such as an access point) may utilize a configurable wake-up-frame format. During operation, the interface circuit may receive a wake-up-radio (WUR)-setup request associated with a recipient electronic device, where the WUR-setup request specifies a proposed configurable wake-up-frame format. In response, the electronic device may determine the configurable wake-up-frame format to be used based at least in part on the proposed configurable wake-up-frame format. Then, the interface circuit may provide a WUR-setup response intended for the recipient electronic device, where the WUR-setup response specifies the configurable wake-up-frame format selected for use. Note that the configurable wake-up-frame format may specify a payload length in a wake-up frame and/or one or more operations of at least one of the recipient electronic device or the electronic device after the wake-up frame is transmitted by the electronic device.
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公开(公告)号：US10893482B2
公开(公告)日：2021-01-12
申请号：US16550640
申请日：2019-08-26
Applicant: Apple Inc.
Inventor： Yong Liu , Christiaan A. Hartman , Jarkko L. Kneckt , Su Khiong Yong
Abstract: Wireless stations may operate to configure direct communication with neighboring wireless stations (direct communication between wireless stations without an intermediate access point). Mechanisms for near-field device-to-device communications are disclosed. A wireless station may be configured to determine a minimum power level for a near-field device-to-device datapath. The wireless device may determine an average channel interference for a first discovery channel and compare the average channel interference to a first threshold. If the average channel interference is less than the first threshold, the wireless device may select a first transmission mode associated with a first power level and determine a maximum data rate for the first transmission mode. If the maximum data rate at least meets a quality of service requirements for a device-to-device transmission with a neighboring wireless device, the wireless device may perform device-to-device transmissions with the neighboring wireless device using the first transmission mode.
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Patent Agency Ranking
公开(公告)号：US10805056B2
公开(公告)日：2020-10-13
申请号：US15336728
申请日：2016-10-27
Applicant: Apple Inc.
Inventor： Guoqing Li , Christiaan A. Hartman , Joonsuk Kim , Su Khiong Yong , Yong Liu
Abstract: A wireless local area network station (STA) changes a receiver operating mode (ROM) and saves power by influencing when a ROM-conforming access point (AP) transmission takes place. The STA evaluates candidate delay regimes after a negotiation exchange with the STA. The STA then instructs the AP of a selected delay regime which the AP is permitted to use when transmitting data according to the changed ROM. The ROM can involve a change in the system bandwidth demodulated by the STA and/or the number of spatial streams demodulated by the STA. The delay regime can allow the AP to transmit with little or no delay based on the changed ROM, or the delay regime may require a fixed time delay before the AP transmits according to the changed ROM.
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公开(公告)号：US20200217875A1
公开(公告)日：2020-07-09
申请号：US16723226
申请日：2019-12-20
Applicant: Apple Inc.
Inventor： Guoqing Li , Jarkko L. Kneckt , Yong Liu , Christiaan A. Hartman , Welly Kasten
Abstract: Methods, systems, and apparatus are presented for performing network probing. A user equipment device (UE) may store a record associating traditional service set identifiers (SSIDs) with corresponding Short SSIDs. According to some embodiments, the UE may receive a message including a Short SSID, and determine whether a corresponding full SSID is known to the UE. Based on the determination, a probe request may be generated, addressed to either the Short SSID or the full SSID. After transmitting the probe request, the UE may receive a probe response, which may include a full SSID corresponding to the Short SSID. The UE may store a record associating the full SSID with the Short SSID, if applicable. According to some embodiments, a UE may receive a plurality of messages including respective SSIDs, and may generate a single probe request addressed to the SSIDs. The UE may receive a plurality of probe responses.
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公开(公告)号：US10681759B2
公开(公告)日：2020-06-09
申请号：US16110557
申请日：2018-08-23
Applicant: Apple Inc.
Inventor： Yong Liu , Christiaan A. Hartman , Guoqing Li , Lawrie Kurian , Peter N. Heerboth , Su Khiong Yong
Abstract: One or more wireless stations may operate to configure direct communication with neighboring mobile stations, e.g., direct communication between the wireless stations without utilizing an intermediate access point. A mechanism for a wireless station to transmit a paging beacon outside of a paging window may include establishing a paged data link with a peer station, determining that one or more data frames associated with the paged data link are pending transmission, and transmitting a beacon to the peer station outside of a scheduled paging window of the paged data link. The beacon may include a paging attribute indicating there are pending data frames.
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公开(公告)号：US20200100189A1
公开(公告)日：2020-03-26
申请号：US16550640
申请日：2019-08-26
Applicant: Apple Inc.
Inventor： Yong Liu , Christiaan A. Hartman , Jarkko L. Kneckt , Su Khiong Yong
Abstract: Wireless stations may operate to configure direct communication with neighboring wireless stations (direct communication between wireless stations without an intermediate access point). Mechanisms for near-field device-to-device communications are disclosed. A wireless station may be configured to determine a minimum power level for a near-field device-to-device datapath. The wireless device may determine an average channel interference for a first discovery channel and compare the average channel interference to a first threshold. If the average channel interference is less than the first threshold, the wireless device may select a first transmission mode associated with a first power level and determine a maximum data rate for the first transmission mode. If the maximum data rate at least meets a quality of service requirements for a device-to-device transmission with a neighboring wireless device, the wireless device may perform device-to-device transmissions with the neighboring wireless device using the first transmission mode.
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公开(公告)号：US20200084706A1
公开(公告)日：2020-03-12
申请号：US16564259
申请日：2019-09-09
Applicant: Apple Inc.
Inventor： Su Khiong Yong , Christiaan A. Hartman , Jarkko L. Kneckt , Mingguang Xu , Mithat C. Dogan , Yong Liu
IPC: H04W48/16 , H04B17/373 , H04W64/00 , H04L12/26
Abstract: Methods for performing error recovery during a ranging procedure may include negotiation one or more ranging parameters, including a set of secure training sequences and receipt of a first ranging frame that may include a first dialog token and may have an appended first secure training sequence. The first ranging frame may be decoded based on the first dialog token but not correlated based on the first secure training sequence. A first acknowledgment that may include an appended second secure training sequence may be transmitted. The second secure training sequence may be associated with a prior dialog token. A second ranging frame that may include a second dialog token and may have an appended third secure training sequence may be received. The second ranging frame may be decoded based on the third dialog token and correlated based on the third secure training sequence.
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